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Henning S, Westra J, Roozendaal C, Haarsma-de Boer G, Fierro JJ, Horvath B, Bootsma H, de Leeuw K. Immunoglobulin G/immunoglobulin M autoantibody ratios in incomplete systemic lupus erythematosus. Scand J Rheumatol 2024; 53:207-216. [PMID: 38505972 DOI: 10.1080/03009742.2024.2321700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVE Immunoglobulin G (IgG) autoantibodies in systemic lupus erythematosus (SLE) are considered pathogenic, whereas immunoglobulin M (IgM) autoantibodies may have protective effects. The aim of this study was to identify whether IgG/IgM autoantibody ratios differ between patients with incomplete systemic lupus erythematosus (iSLE), patients with SLE, and healthy controls (HCs), and whether IgG/IgM autoantibody ratios relate to progression from iSLE to SLE. METHOD This prospective cohort study included 34 iSLE patients, 41 SLE patients, and 11 HCs. IgG and IgM anti-dsDNA, anti-Ro52, and anti-Ro60 were measured by fluoro-enzyme immunoassay in serum samples obtained at baseline in all groups and in follow-up samples of up to 5 years for iSLE patients. Correlations between IgG/IgM autoantibody ratios, interferon signature, and clinical parameters were also assessed. RESULTS At baseline, IgG anti-dsDNA, anti-Ro52, anti-Ro60, and IgM anti-dsDNA were elevated in iSLE and SLE patients. IgG/IgM anti-dsDNA and anti-Ro52 ratios were similar between groups, while IgG/IgM anti-Ro60 ratios were significantly elevated in iSLE and SLE patients compared to HCs. IgG/IgM autoantibody ratios were not correlated with interferon signature or clinical parameters. IgG/IgM ratios at baseline were similar and remained relatively stable during a median follow-up of 18 months in non-progressors and six iSLE patients who progressed to SLE. CONCLUSION IgG anti-dsDNA, anti-Ro52, anti-Ro60, and IgM anti-dsDNA were elevated in iSLE and SLE patients, which was not apparent from the respective IgG/IgM ratios only. IgG/IgM autoantibody ratios remained relatively stable over up to 5 years in iSLE non-progressors and six patients who progressed to SLE.
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Affiliation(s)
- S Henning
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, The Netherlands
| | - J Westra
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, The Netherlands
| | - C Roozendaal
- Department of Laboratory Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - G Haarsma-de Boer
- Department of Laboratory Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - J J Fierro
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, The Netherlands
- Reproduction Group, Department of Microbiology and Parasitology, University of Antioquia UdeA, Medellin, Colombia
| | - B Horvath
- Departments of Dermatology, University Medical Centre Groningen, Groningen, The Netherlands
| | - H Bootsma
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, The Netherlands
| | - K de Leeuw
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, The Netherlands
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Fierro JJ, Velásquez-Berrío M, Ospina A, Henning S, de Leeuw K, Cadavid J ÁP. The effects of hydroxychloroquine and its promising use in refractory obstetric antiphospholipid syndrome. Rheumatol Int 2024; 44:223-234. [PMID: 37741812 PMCID: PMC10796698 DOI: 10.1007/s00296-023-05457-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/01/2023] [Indexed: 09/25/2023]
Abstract
Hydroxychloroquine (HCQ) is obtained by hydroxylation of chloroquine (CQ) and the first indication was malaria. Nowadays, HCQ is commonly used in systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) with favorable results. Antiphospholipid syndrome (APS) is an autoimmune disease characterized by thrombosis and/or pregnancy morbidity and persistent positivity of antiphospholipid antibodies. Around 20-30% of pregnant women with APS develop adverse pregnancy outcomes despite conventional treatment with aspirin and heparin, called refractory obstetric APS. Interestingly, HCQ has shown positive effects on top of the standard of care in some refractory obstetric APS patients. HCQ mechanisms of action in APS comprise its ability to bind sialic acid present in cell membranes, its capacity to block the binding of antiphospholipid antibodies to the cell and the induced increase of pH in extracellular and intracellular compartments. However, the precise mechanisms of HCQ in the specific situation of refractory APS still need to be fully clarified. Therefore, this review summarizes the known modulating effects of HCQ and CQ, their side effects and use in APS and different pathologies to understand the benefit effects and the mechanism of action of HCQ in refractory obstetric APS.
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Affiliation(s)
- Juan J Fierro
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700RB, Groningen, The Netherlands.
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.
| | - Manuela Velásquez-Berrío
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Alexandra Ospina
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Svenja Henning
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700RB, Groningen, The Netherlands
| | - Karina de Leeuw
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700RB, Groningen, The Netherlands
| | - Ángela P Cadavid J
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
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Fierro JJ, Prins JR, Henning S, Bootsma H, Westra J, de Leeuw K. Endometrial immune profiling as a new tool for preconceptional assessment in patients with systemic autoimmune diseases. Front Immunol 2024; 14:1334231. [PMID: 38250081 PMCID: PMC10797870 DOI: 10.3389/fimmu.2023.1334231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Affiliation(s)
- Juan J Fierro
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Jelmer R Prins
- Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Svenja Henning
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Hendrika Bootsma
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Johanna Westra
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Karina de Leeuw
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
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Fierro JJ, Prins JR, Verstappen GM, Bootsma H, Westra J, de Leeuw K. Preconception clinical factors related to adverse pregnancy outcomes in patients with systemic lupus erythematosus or primary Sjögren's syndrome: a retrospective cohort study. RMD Open 2023; 9:e003439. [PMID: 37652559 PMCID: PMC10476138 DOI: 10.1136/rmdopen-2023-003439] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023] Open
Abstract
OBJECTIVE To identify preconception clinical factors associated with adverse pregnancy outcomes (APO) in patients with systemic lupus erythematosus (SLE) or primary Sjögren's syndrome (pSS). METHODS A single-centre, retrospective cohort study was conducted, which included pregnant women treated at the University Medical Center Groningen between January 2010 and August 2021 who fulfilled classification criteria for SLE or pSS. Demographic data, relevant comorbidities, disease duration, disease activity before and during pregnancy, APO, laboratory parameters and treatment regimens were recorded. Associations between the presence of APO and preconception characteristics were evaluated. RESULTS Our study population included 48 (70%) SLE and 21 (30%) pSS pregnancies concerning 70 fetuses (one twin). Preterm birth (n=9, 19%) was the most frequent APO in SLE pregnancies, while in pSS pregnancies this was miscarriages (n=3, 14%). There were no associations between the presence of APO in SLE pregnancies and clinical parameters, laboratory parameters or medication use prior to conception. In the pSS group, significant associations were found between the presence of APO and body mass index (p=0.010), parity (p=0.046), C4 (p=0.021) and low C4 levels (p=0.002). CONCLUSIONS No preconception risk factors related to APO were found in SLE pregnancies, whereas preconception complement levels were associated with APO development in patients with pSS.
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Affiliation(s)
- Juan J Fierro
- Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
- Microbiología y Parasitología, Grupo Reproduccion, Universidad de Antioquia UdeA, Medellin, Antioquia, Colombia
| | - Jelmer R Prins
- Obstetrics and Gynecology, University Medical Center Groningen, Groningen, The Netherlands
| | - Gwenny M Verstappen
- Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
| | - Hendrika Bootsma
- Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
| | - Johanna Westra
- Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
| | - Karina de Leeuw
- Rheumatology and Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
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Fierro JJ, Velásquez M, Cadavid AP, de Leeuw K. Effects of anti-beta 2-glycoprotein 1 antibodies and its association with pregnancy-related morbidity in antiphospholipid syndrome. Am J Reprod Immunol 2021; 87:e13509. [PMID: 34738282 PMCID: PMC9285810 DOI: 10.1111/aji.13509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/28/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by venous, arterial, or small-vessel thrombosis and/or pregnancy-related morbidity, associated with persistent positivity of antiphospholipid antibodies (aPL). Pregnancy-related morbidity in APS patients is characterized by unexplained fetal deaths, premature birth of morphologically normal newborns, and/or consecutive pregnancy losses before the 10th week of gestation. Beta 2-glycoprotein 1 (ß2GP1) is the main antigen recognized by aPL and plays an essential role in the pathogenesis of APS. Antibodies against ß2GP1 (aß2GP1) are involved in damage-generating mechanisms in APS due to their interaction with trophoblasts, decidua, and endothelial cells. aß2GP1 might be used as a prognostic tool for obstetric risk stratification and ß2GP1 could be a target for molecular-targeted treatment to prevent pregnancy morbidity in APS. This review describes these aspects of aß2GP1, including effects on different cellular targets, its association with the severity of obstetric manifestations and the potential of ß2GP1-targeted therapies for APS.
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Affiliation(s)
- Juan J Fierro
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Universidad de Antioquia UdeA, Medellín, Colombia.,Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Manuela Velásquez
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Angela P Cadavid
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Universidad de Antioquia UdeA, Medellín, Colombia.,Grupo de Investigación en Trombosis, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.,Red Iberoamericana de Alteraciones Vasculares Asociadas a TRanstornos del EMbarazo (RIVATREM), Chillán, Chile
| | - Karina de Leeuw
- Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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